AP2-20N - Motion detector OPTEX - Free user manual and instructions
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| Product Type | Passive Infrared (PIR) Motion Detector |
| Brand | OPTEX |
| Model | AP2-20N |
| Detection Method | Passive Infrared (PIR) using dual element pyroelectric sensor |
| Detection Range | 12 m x 12 m (90° wide angle) at mounting height of 2.0 m |
| Mounting Height | 2.0 m recommended |
| Power Supply | 10 to 30 VDC; current consumption 16 mA max (12 VDC) |
| Output | Relay (NC, N/O selectable) rated 28 VAC/DC, 0.1 A max |
| Alarm Period | Approx. 2 seconds |
| Warm-up Time | Approx. 30 seconds |
| Operating Temperature | -20°C to +50°C |
| Dimensions (W x H x D) | 105 mm x 56 mm x 45 mm |
| Weight | Approx. 100 g |
| Main Functions | Motion detection with adjustable sensitivity; pulse count selectable (1, 2, or 3); tamper switch; LED indicator for alarm |
| Maintenance & Cleaning | Clean lens with soft dry cloth; avoid solvents; check mounting and wiring periodically |
| Safety | Use only with specified power supply; disconnect power before installation; follow local electrical codes |
| Spare Parts & Repairability | No user-serviceable parts; replace entire unit if faulty; contact OPTEX support |
| General Information | Designed for indoor use; wall or ceiling mount; immune to small animals (up to 20 kg) with optional pet alley mask |
Frequently Asked Questions - AP2-20N OPTEX
How do I wire the AP2-20N motion detector?
Connect the power supply (10-30 VDC) to the red (+) and black (-) terminals. The relay output is available on the green (N/C) and white (N/O) terminals. Common (C) is orange. Ensure power is off during wiring.
What is the detection range of the AP2-20N?
The detection range is 12 meters by 12 meters with a 90° wide angle at a mounting height of 2.0 meters.
Can I adjust the sensitivity of the detector?
Yes, the AP2-20N has a built-in sensitivity adjustment. Use the potentiometer on the PCB to set the desired level. Additionally, the pulse count can be set to 1, 2, or 3 to reduce false alarms.
How do I mount the AP2-20N?
Mount at a height of 2.0 meters on a wall or ceiling using the provided bracket. Ensure the lens faces the area to be protected. Use the template for drilling holes and run wires through the back opening.
What does the LED indicator mean?
The LED blinks for about 2 seconds when motion is detected. It remains off during normal standby. If the LED stays on continuously, there may be a wiring fault or the detector is in warm-up mode (30 seconds).
Why does my AP2-20N trigger false alarms?
False alarms can be caused by rapid temperature changes, pets, or mounting issues. Try increasing the pulse count to 3, reducing sensitivity, or using the 'pet alley' mask to ignore small animals (up to 20 kg). Ensure the detector is not facing heat sources or direct sunlight.
What is the tamper function?
The tamper switch is normally closed (NC) and opens if the cover is removed. It can be used to trigger an alarm when unauthorized access to the detector occurs. Connect the tamper output (yellow wire) to your alarm panel.
Can I use the AP2-20N outdoors?
No, the AP2-20N is designed for indoor use only. Exposure to moisture, extreme temperatures, or direct sunlight may damage the unit and cause unreliable detection.
How do I clean the detector lens?
Use a soft, dry cloth to gently wipe the lens. Do not use any solvents or abrasive cleaners as they may damage the plastic lens and affect detection.
What is the warranty period for the AP2-20N?
OPTEX offers a limited warranty of 2 years from the date of purchase. It covers manufacturing defects under normal use. For detailed terms, refer to the official warranty policy or contact your distributor.
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